Here are some nebulas that I changed the min and the max of and then colored:
Lagoon Nebula Spectrum
For this image I started with a min of 193 and a max of 4095. Then I clicked LOG, which made the whole image lighter, and then AUTO, which changed the min to 342 and the max to 760. Then, I colored it Spectrum, and finally, I inverted the color (negative).
For this image i started with a min of 179 and a max of 4095. Then i clicked LOG, which made it brighter, and then AUTO, which changed the min to 754 and the max to 1136. Then I colored the image as Ice, and adjusted the min and the max until they read MIN:
Here are some images of nebulas that I colored.